APA (7th ed.) Citation

Gagné, R. M. (1962). Psychological principles in system development. Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

Gagné, Robert Mills. Psychological Principles in System Development. New York: Holt, Rinehart and Winston, 1962.

MLA (8th ed.) Citation

Gagné, Robert Mills. Psychological Principles in System Development. Holt, Rinehart and Winston, 1962.

Warning: These citations may not always be 100% accurate.